Machine for manufacturing packaging ties



June 28, 1966 B. DUNN 3,257,705

MACHINE FOR MANUFACTURING PACKAGING TIES Filed y 1963 5 Sheets-Sheet 1 6%; ZZZ

BENJAMIN DUNN ATTORNEYS June 28, 1966 B. DUNN 3,257,705

MACHINE FOR MANUFACTURING PACKAGING TIES FIG 3 46 //VVENTOR BENJAMIN DUNN BYW,

A TTOR/VEYS June 28, 1966 B. DUNN 3,257,705

MACHINE FOR MANUFACTURING PACKAGING TIES Filed May 22, 1963 5 Sheets-Sheet 4 FIG. 6

l 20 T J4 J 55 50 54 l 55 53 4X 1 INVENTOR. BENJAMIN DUNN A TTORNEYS June 28, 1966 B. DUNN 3,257,705

MACHINE FOR MANUFACTURING PACKAGING TIES Filed May 22, 1965 5 Sheets-Sheet 5 INVENTOR, BENJAMIN DUNN ATTORNEYS United States Patent f 3,257,705 MACHINE FOR MANUFACTURING PACKAGING TEES Benjamin Dunn, Newington, Conn., assignor to The Stanley Works, New Britain, Conn, a corporation of Connecticut Filed May 22, 1963, Ser. No. 282,409 18 Claims. (Cl. 29-63) This invention relates to the manufacture of packaging ties from ribbonlike material such as metal strapping, and more particularly to a machine for manufacturing packaging ties with a fastening sleeve or seal thereon and with one end of the tie flanged for retention of the seal.

Ties of the type described are primarily useful in two applications. They are useful in conjunction with bale presses and the like for packaging material that is compressed by the press with the ties being loosely secured about a bundle of the compressed material and tensioned by the expansion of the material when the press is released. They are also useful for being tensioned by a tool, known as a pusher bar tool, of the type shown in United States Patent No. 2,232,376 of F. A. Endress entitled, Strap Stretching Device. Generally, with a pusher bar tool the flanged end of the tie retains the seal on the strap while the seal is engaged by a portion of the tool and the strap is tensioned by the tool through its gripping of the other end of the strap. In the past the seals have been manually threaded on the ties and the end of the tie thereafter bent to provide the flanged end. Accordingly, it is a principal aim of the present invention to provide a machine for manufacturing precut lengths of ties with a fastening seal arranged thereon and with one end of the strap bent to provide a flange for retaining the seal.

It is another aim of the present invention to provide a machine of the type described adapted for fully automatic operation for continuous manufacture of packaging ties from a coil of strapping and which automatically terminates operation when the end of the coil is reached or when the thickness of the strapping is not within the desired tolerance.

A further aim of the present invention is to provide a machine of the type described for manufacturing ties in accurate preselected lengths.

A still further aim of the present invention is to provide a machine of the type described which is fluid actuated and electrically controlled.

Other objects will be in part obvious and in part pointed out more in detail hereinafter.

The invention accordingly consists in the features of construction, combination of elements and arrangement of parts which will be exemplified in the construction hereafter set forth, and the scope of the application of which will be indicated in the appended claims.

In the drawings:

FIG. 1 is a perspective view, partly broken away, of a preferred embodiment of the tie manufacturing machine of the present invention;

FIG. 2 is an enlarged front elevation view, partly broken away, of a shearing and forming subassembly of the machine of FIG. 1, showing parts in one operative position in full lines and in another operative position in phantom lines;

FIG. 3 is an enlarged front elevation view, partly broken away, of a feed subassembly of the machine of FIG. 1;

FIG. 4 is a side elevation view, partly broken away and partly in section, of a press subassembly of the machine of FIG. 1;

FIG. 5 is a side elevation view, partly broken away and partly in section, of a magazine subassembly of the machine of FIG. 1;

3,2517% Patented June 23, 1965 "ice FIG. 6 is a reduced side elevation view, partly broken away and partly in section, of the feed subassembly of FIG. 3;

FIG. 7 is an enlarged side elevation view, partly broken away and partly in section, of the shearing and forming subassembly of FIG. 2;

FIG. 8 is a perspective view, partly broken away, of a tie manufactured by the machine of the present invention; and

FIG. 9 is a schematic showing of the electrical control circuit and fluid system of the tie manufacturing machine.

The machine of the present invention is adapted to manufacture a packaging tie of the type shown in FIG. 8 from a coil of ribbonlike material, such as metal strapping ll conventionally used for such ties. In the usual manner the tie has a sleevelike seal 2 with inwardly extending ends 4 on the side of the tie adjacent an inturned flanged end 6 thereon retaining the seal on the tie, and which is sufliciently spaced from the body of the strapping to allow the sleeve 2 to slide thereunder. The strapping is deformed at a point removed from the end 6 to provide a dimple protrusion 8 adapted to retain the seal in proximity to the end 6. This type of packaging tie has particular utility in the manner above described for securing a bundle in conjunction with the operation of a bale press or for being tensioned by a pusher bar tool.

Referring now particularly to FIG. 1, the machine of the present invention is shown to generally comprise four subassemblies: a feed subassembly 12, a shearing and forming subassembly 14, a magazine subassembly l6 and a press subassembly 18.

The feed subassembly, as best shown in FIGS. 3 and 6, comprises a serrated feed wheel 20 which is suitably fixed to an arbor 22 rotatably mounted in an upright stanchion 26. The arbor 22 and therefore the serrated feed wheel 20 are operatively driven by a rotary air motor 28. An outwardly tapered guide roller 34 having an inner cylindrical portion of less diameter than the feed wheel 20 is threaded on the end of the arbor 22 and is adapted, when threading the machine, for guiding the metal strapping 1 beneath the feed wheel. A backup wheel 36, centrally recessed for receiving the metal strapping, is rotatably mounted on a pair of parallel arms 38 pivotally mounted to a pair of stationary uprights 40 of the stanchion 26. The ends of the arms opposite the wheel 36 have aligned openings receiving a transverse pin 42 to which is connected a tension spring 44 for urging the backup wheel 36 upwardly for pressing the strapping into engagement with the feed wheel 20. The lower end of the tension spring 44 is secured to a catch 46 which is pivotally mounted to the stanchion 26 and movable outwardly from a holding lug 48 to release the tension on the spring 44 and thereby facilitate the insertion and removal of the strapping 1 from between the feed wheel 20 and backup wheel 36. A pair of limit switches 57, 59 (FIG. 9) are mounted in a housing 56, with downwardly extending slidable actuating plungers 50, 52 having adjustable tappets 54,- 55, respectively, threaded in the ends thereof in engagement with the ends of the transverse pin 42. The plungers are adapted to actuate the switches 57, 59 for controlling the operation of the machine in a manner hereinafter described. The tappets 54, 55 are adjusted so that the switches are actuated when the thickness of the strapping is greater or less than the tolerance of the strapping. The switch 57 connected to the plunger 50 is therefore sensitive to excessively thick strapping or to welds or the like thereon, and the switch 59 connected to the plunger 52 is sensitive to excessively thin strapping and to the passage of the end of the coil of strapping between the feed and backup wheels.

A pair of rearwardly tapered vertically spaced guide plates 60, 62 are mounted forwardly of the feed wheel 20 for guiding the metal strapping therefrom. Adjacent to the forward ends of the guides 60, 62 is mounted the shearing and forming subassembly 14. As best seen in FIGS. 2 and 7, this subassembly comprises a housing 64 with a rotor 68 mounted for rotation therein about a transverse axis. The rotor 68 is formed to provide a spur gear in mesh with a rack 70 slidably mounted in the housing 64 and operatively connected to the rod 65 of a plunger (not shown) of a linear air motor 72. The housing 64 and the rotor 68 have aligned bores receiving a sleeve 74 suitably fixed to the rotor 68 and having a switch actuating cam 75 on the inner end thereof. An arbor 76 having an inner end threaded to a rod 77 of a plunger (not shown) of a linear air motor 78 is slidably received within an axial bore in the sleeve 74. The outer end of the arbor 76 is normally flush with the face of the rotor as seen in FIG. 7, and has fixed thereto for projection outwardly from the face of the rotor 68 a supporting and ejecting pin 80. Upon operation of the linear air motor 78, the arbor 76 is withdrawn from its normal or extended position, shown in FIG. 7, to retract the pin 80 to a position inwardly of the face of the rotor 68.

A cutting and forming segment 82 is pivotally mounted to the face of the rotor 68 by means of a fastener 84. A pin 83 fixed to the rotor and received within a slot 85 in the segment limits the angle of pivotal movement of the segment on the rotor, the angle being made adjustable by a set screw 87 threaded in the segment. In the retracted or normal angular position of the rotor 68, the generally stair-step shaped trailing edge 86 thereof is in engagement with a complementary contoured edge of an anvil 88 fixed to the housing 64 and providing a reverse stop for the segment. Accordingly, the pivotal position of the segment 82 on the rotor is appropriately aligned by the anvil prior to the forward or counterclockwise movement (as seen in FIG. 2) of the rotor and segment.

A pair of aligned bars 90, 92 are secured Within a rearwardly inclined slot in the housing with their forward edges lying in a plane substantially tangential to the arc of travel of a recessed cutting edge 94 of the segment 82. The bars 90, 92 have their inner edges rearwardly tapered and the upper bar 92 is adjustable on the housing 64 to form with the lower bars an opening approximately the thickness of the strapping. In a conventional manner the upper .bar 92 is prevented from being inadvertently displaced upwardly by an adjustable stop screw 96. The segment cutting edge 94 coacts with a cutting edge of the upper bar 92 to shear the strap upon rotation of the rotor 68, the strapping having been previously raised into contact with the upper bar 92 from the prior contact With the generally radially extending leading edge 97 of the segment. The leading edge 97 thereafter forms the strapping, as shown in phantom in FIG. 2, about the pin 80.

A forward stop 104 fixed to the housing 64 has a rearwardly projecting lug 106 engageable by the outer recessed portion of the leading edge 97 of the segment for limiting the forward movement of the segment. An L- shaped separator bar 108 extending rearwardly from the stop 104 immediately above the strap is provided to maintain the proper spacing of the inturned end 6 of the strapping from the body thereof. The motor 78 of the pin 80 is scheduled to withdraw the pin after approximately 120 degrees of forward rotation of the rotor, as hereinafter more fully explained, and consequently, when the segment engages the lug 106 the pin has been withdrawn and the inner heel of the segment is free to pivot downwardly a distance determined by the adjustment of the screw 87 to adequately clinch the inturned end of the strapping. Subsequent return of the pin 80 will then engage the strapping to eject the completed tie from the machine.

The vertically spaced upper and lower edges of the anvil 88 and stop 104, respectively, provide additional guides for the strapping. Extending from adjacent the anvil 88 and beneath the stop 104 is a further guide 110 which forms a part of the magazine subassembly 16. Adjustably secured above the lower guide 110 are a pair of upper guides 112, 114.

An upstanding elongated chute of the magazine subassembly forms an enclosure having a substantially rectangular cross section for receiving a plurality of seals 2 (FIG. 8). The seals 2 are positioned in the chute 120 in alignment with the strapping and with their ends 4 facing upwardly. The chute 120 terminates immediately above the lower guide 110 and is adapted to feed one of the seals into alignment for receiving the strapping, for which purpose the lower guide 110 is recessed below the chute (FIG. 1). Thus, it can be seen that a seal is automatically mounted onto the strap as the free end of strap is fed forwardly over the lower guide 110.'

For the purpose of shutting off the machine when the last seal in the magazine 16 has been fed into position on the guide 110, there is mounted on the magazine chute 120 a limit switch 124 that is actuated by a depending pivotally mounted arm 126. When the magazine has two or more seals therein the lower edge of the arm 126 engages a seal weight 128 or a seal in the magazine, for which purpose there is provided on the back side of the chute 120, a slot 125. When the last seal in the chute rests on the lower guide 110 (FIG. 5) the arm 126 no longer contacts a seal or the weight 128 and is therefore free to move outwardly through the urging of suitable means to the position shown in full lines in FIG. 5 to actuate the switch 124.

The press subassembly 18 is mounted forwardly of and adjacent to the magazine subassembly 16. A press anvil 130 is mounted on a press frame 132 with its upper surface in substantial alignment with the upper guide surface of the magazine guide 110. A press ram 135 is mounted for vertical movement on the frame and biased upwardly by compression springs 136. The anvil 130 is suitably recessed beneath a forming punch 142 of the ram for receiving a protrusion formed in the strapping by a dimple projection 137 on the end of the punch. An arm 138 pivotally mounted on the frame 132 has an adjustable tappet 140 threaded thereto which is engageable with the ram 135 to move the punch 142 and a clamping plate 134 downwardly into engagement with the strapping. The opposite end of the arm 138 has pivotally mounted thereon a bifurcated connector 144 threaded to a shaft 146 which is connected to a plunger (not shown) of a linear air motor 148. Accordingly, upon actuation of the motor 148, the arm 138 is pivoted counterclockwise, as seen in FIG. 4, to move the ram 135 downwardly and thereby form a seal retaining dimple protrusion in the strapping and concomitantly hold the strapping against longitudinal movement.

Referring to FIG. 9 which shows a schematic of. the electrical control circuit and fluid system of the machine, a two-position spring returned spool valve operated by a solenoid 162 controls the admission of air to the rotary feed motor 28 from an air manifold 161 having a pressure regulator 163. A two-position spool valve 164 operated by a pair of solenoids 166, 168 controls the admission of air from the manifold to opposite ends of the press operating motor 148, the solenoid 166 upon energization operating the motor 148 to move the press ram 135 into engagement with the strapping, and the solenoid 168 upon energization operating the motor 148 to retract the ram 135 from the strapping. A two-position spool valve 170 operated by a pair of solenoids 172, 174 controls the admission of air from the manifold to opposite ends of the rotor operating motor 72, the solenoid 172 upon energization operating the motor 72 for moving the rotor 68 forwardly and the solenoid 174 upon energization operating the motor 72 for retracting the rotor. A two-position spool valve 176 operated by a pair of solenoids 180, 182 controls the admission of air from the manifold to opposite ends of the ejector pin operating lays 184, 186, 188 and 1% are connected for energizing,

respectively, the feed motor valve solenoid 162; the press valve solenoid 166 and the rotor valve solenoid 172; the ejector pin valve solenoids 186 and 182; and the press valve solenoid 168 and the rotor valve solenoid 174. Electrical leads 192, 194 are adapted for connecting the electrical circuit to a suitable power source, the relay 1% and solenoids 163, 174 being connected thereto, and the remaining aforementioned relays and solenoids being connected to a secondary lead 196 energized by a master on-oif relay 198.

A push button spring-loaded master start switch 2% is provided for energizing the master relay 1%, and a holding circuit 202 completed by the master relay 198 maintains the master relay energized after the master start switch 200 is released. A green ready light 204 indicates when the master relay 198 is energized, the limit switches 57, 59 and 124 being connected in series with the master relay 1% and necessarily remaining closed to maintain the master relay 198 energized. Accordingly, when any of the three limit switches 57, 59 or 124 is actuated to break the circuit to the master relay 198, the connection to the lead 196 and therefore to the relays 184, 186 and 188 is broken to shut down the operation of the machine except for the retraction of the rotor 68 and the press ram 135. The master relay may also be deenergized by a push button spring-loaded emergency stop switch 213 connected in series with the master start switch 260, with the emergency stop switch 213 upon actuation energizing the relay 199 for retracting the rotor 68 and ram 135.

A conventional motor driven timer of the type including a synchronous motor 212 and a time cycle starting clutch 216 operated by a solenoid 218 is connected to energize a relay 220 after a time delay determined by a mechanical timing device 221, the time delay being regulatable by a knob 223 as, for example, in increments of of a second up to 20 seconds. A two-position start'stop switch 222 when placed in the start position energizes the relay 184 and the timer clutch operating coil 218 to initiate the drive of the feed wheel 20 and the mechanical timing device 221. After the passage of a time interval preselected by the knob 223, a relay 220 is energized to break the circuit to the relay 184 and thereby terminate the feed Wheel drive, to break the circuit to the timer motor 212, and to complete the circuit to the relay 186. Whereupon the press valve solenoid 166 and the rotor valve solenoid 172 are energized to move the ram 135 into engagement with the strapping for dimpling the strapping and for holding the strapping against further longitudinal displacement, and to drive the segment 82 forwardly about the pin 80.

The cam 75 connected to the rotor 68 operates three switches 228, 230, 232. The cam 75 actuates the switch 232 upon forward movement of the rotor 68 to break the circuit to the timer clutch operating solenoid 218 and the relays 184 and 186. After approximately 120 degrees of forward angular movement of the rotor 68, the cam 75 actuates the switch 230 to complete the circuit to the relay 188 with the result that the feed valve 176 is shifted for withdrawing the pin 8t). When the rotor 68 reaches its full forward or approximately 180 position, where the segment engages the lug 106, the cam 75 actuates the switch 228 to complete the circuit to a time-delay relay 234 which provides a momentary delay during which the clinching of the inturned end of the strapping by the heel of the segment is accomplished and thereafter completes the circuit to the relay 190, whereupon the press valve 164 and the rotor valve 170 are shifted to retract the press ram 135 and the rotor 68.

Upon the return of the rotor from its full forward position the switch 228 breaks the circuit to the relay 234 resulting in breaking the circuit to the relay 190, and as the rotor passes through its 120 position the switch 239 breaks the circuit to the relay 188 to shift the valve 176 and extend the ejector pin for ejecting the formed tie from themachine. When the rotor reaches its fully retracted position the switch 232 places the circuit to the relay 186 in condition for energization by the timer relay 226, and completes the circuit to the timer clutch operating coil 218 and to the relay 184, thereby initiating another cycle of the machine.

It can be seen therefore that the machine for manufacturing packaging ties of the present invention is adapted to rapidly and automatically form the ties with the tie length being accurately adjustable by appropriate setting of the time interval with the knob 223. It has been found that with the machine of the present invention a time interval for a complete cycle of the machine of the order of /2 second for a 25 inch tie and 3 seconds for a inch tie, and an accuracy in the length of the tie of 3% of the tie length are readily obtainable. In addition, the machine of the present invention automatically shuts down when the strapping has a thickness greater or less than the desired tolerance, when the end of the coil of strapping is reached and when the seal magazine is empty.

As will be apparent to persons skilled in the art, various modifications and adaptations of the structure above described will become readily apparent without departure from the spirit and scope of the invention, the scope of which is defined in the appended claims.

I claim:

1. A machine for manufacturing elongated strap packaging ties having a seal thereon and a flanged end retaining the seal, comprising in operative alignment, a feed mechanism operable for forwardly feeding the strap, means operable for shearing the strap and for forming a flanged end thereon, and means for mounting a seal onto the strap.

2. The machine for manufacturing elongated strap packaging ties of claim 1 wherein the means for shearing and forming the strap includes a first cutting element, a rotor having a second cutting element thereon movable through an arc of travel adjacent the first cutting element for shearing the strap, and means on the rotor engageable with'the sheared end of the strap for forming a flange thereon upon angular movement of the rotor.

3. A machine for manufacturing elongated strap packaging ties having a seal thereon and a flanged end for retaining the seal, comprising in operative alignment, motor operated means for forming a flanged end on the strap, means for retaining the strap against longitudinal movement, and means for mounting a seal on to the strap.

4. A machine for manufacturing elongated strap packaging ties having a seal thereon and a flanged end retaining the seal, comprising, in operative alignment, means for mounting a seal onto the strap, and means for forming an inturned end thereon including a revolvable rotor having means thereon engageable with a strap end for forming a flange thereon upon angular movement of the rotor; and motor means for angularly displacing the rotor.

5. A machine for manufacturing elongated strap packaging ties having a seal thereon and a flanged end retaining the seal, comprising, in operative alignment, a feed mechanism operable for forwardly feeding the strap, means operable for shearing the strap and for forming a flanged end thereon, and a seal magazine operable for feeding the seals individually and sequentially into position for receiving the strap; and motor means for operating the feed mechanism and shearing and forming means.

6. A machine for manufacturing elongated strap packaging ties having a seal thereon and a flanged end for retaining the seal, comprising, in operative alignment, a rotatary feed wheel operable for forwardly feeding the strap, means including a rotor operable for shearing the strap and for forming a flanged end thereon upon angular movement of the rotor, press means forward of the rotor operable for holding the strap against longitudinal movement and for deforming the strap for retaining a seal on the strap adjacent said flanged end, and a seal magazine intermediate the rotor and press operable for feeding seals individually and sequentially into position for receiving the strap; and motor means for operating the feed wheel, the rotor and the press.

7. A machine or manufacturing elongated strap packaging ties having a seal thereon and a flanged end retaining the seal, comprising, in operative alignment, a feed mechanism for forwardly feeding the strap, means operable for shearing the strap and for forming a flange on the end thereof, means operable for retaining the strap against longitudinal movement, and a seal magazine forward of the forming and shearing means operable for feeding seals individually and sequentially into position for receiving the strap; said feed mechanism including feed and backup wheels adapted for receiving the strap therebetween and means urging the wheels together for maintaining the strap in contact therewith; motor means for operating the feed wheel, the shearing and forming means and the holding means, and means for controlling the motor means sensitive to the thickness of the strap.

8. A machine for manufacturing elongated strap packaging ties having a seal thereon and a flanged end retaining the seal, comprising in operative alignment, means operable for shearing the strap and for forming a flanged end thereon, means operable for retaining the strap against longitudinal movement, and means operable for mounting a seal onto the strap; the shearing and forming means including a first stationary cutting element and a rotor having a shoulder engageable with the strap providing a second movable cutting element with an arc of travel adjacent the first cutting element whereby the shoulder upon angular movement of the rotor coacts with the stationary cutting element to shear the strap and thereafter form a flange on the sheared end thereof.

9. The machine for manufacturing elongated strap packaging ties of claim 8 wherein the shearing and form ing means further includes an axially extending pin adjacent the shoulder providing a support about which the shoulder forms the sheared end of the strap.

10. The machine for manufacturing elongated strap packaging ties of claim 8 wherein the shoulder is provided by a part pivotally mounted on the rotor and wherein the shearing and forming means further includes a forward stop engageable by said part to pivot the part on the rotor for clinching the flanged end.

11. The machine for manufacturing elongated strap packaging ties of claim 9 wherein the pin is mounted for axial withdrawal and re-extension for ejecting the strap from the machine.

12. A machine for manufacturing elongated strap packaging ties having a seal thereon and an inturned end for retaining the seal, comprising in operative alignment, a rotary feed wheel operable for forwardly feeding the strap from a coil thereof, a first cutting element, means including a forming and shearing rotor having a second cutting element adapted for coaction with the first cutting element to shear the strap and a shoulder engageable with the strap, a support mounted for extension adjacent the rotor whereby upon operable angular movement of the rotor the shoulder engages the strap to form an inturned end thereon about the support, a press forward of the rotor for deforming the strap for retaining a seal on the strap adjacent its inturned end, and a seal magazine intermediate the rotor and press operable for feeding seals individually and sequentially into position for receiving the strap as it is fed forwardly by the feed wheel; and

0 motor means for operating the feed wheel, the rotor, and the press.

13. A machine for manufacturing elongated strap packaging ties having a seal thereon and a flanged end retaining the seal, comprising in operative alignment a feed mechanism operable for forwardly feeding a predetermined length of strap, means operable for shearing the strap and forming a flanged end thereon, and means for mounting a seal onto the strap; motor means for operating the feed mechanism and the shearing and forming means, and control means for the motor means providing for completion of the forward feeding of the predetermined length of strap prior to the operation of the shearing and forming means.

14. A machine for manufacturing elongated strap packaging ties having a seal thereon and a flanged end retaining the seal, comprising in operative alignment, a rotary motor driven feed mechanism operable for forwardly feeding the strap, motor driven means operable for shearing the strap and for forming a flanged end thereon, and means for mounting a seal onto the strap; and electrical control means effecting operation of the rotary motor for feeding a preselected length of strap and for thereafter effecting operation of the motor driven means for shearing and forming the strap.

15. A machine for manufacturing elongated strap packaging ties having a seal thereon and a flanged end retaining the seal, comprising in operative alignment, a feed mechanism for forwardly feeding a preselected length of strap, means operable for shearing the strap and for forming a flange on the end thereof, and means operable for mounting a seal onto the strap; the shearing and forming means including a first cutting element, a rotor having a second cutting element movable through an arc of travel adjacent the first cutting element and forming means upon angular movement of the rotor forming a flanged end on the strap, and means providing a support about which the forming means forms the flanged end; motor means for operating the feed mechanism and the rotor; and motor control means for effecting operation of the feed mechanism for feeding the preselected length of strap and for thereafter effecting angular movement of the rotor.

16. The machine for manufacturing elongated strap packaging ties of claim 15 further comprising means operable for retaining the strap against longitudinal movement, and wherein the motor means operates the retaining means and the control means effects operation of the retaining means in cooperation with the angular movement of the rotor.

17. A machine for manufacturing elongated strap packaging ties having a seal thereon and in inturned end for retaining the seal, comprising in operative alignment, a rotary feed wheel operable for forwardly feeding the strip from a coil thereof, a first cutting element, forming and shearing means including a rotor having a shoulder engageable with the strap and a second cutting element adapted upon angular displacement of the rotor for coaction with said first cutting element to shear the strap, an ejector pin slidably mounted coaxially with the rotor adjacent the shoulder whereby upon angular movement of the rotor the shoulder forms an inturned end on the strap about the pin, a press forward of the rotor for deforming the strap for retaining a seal on the strap adjacent its inturned end, and a seal magazine intermediate the rotor and press operable for feeding the seals individually and sequentially into position for receiving the strap as it is fed forwardly by the feed wheel; first fluid actuated motor means driving the rotary feed wheel, second fluid actuated motor means driving the rotor, third fluid actuated motor means driving the press, fourth fluid actuated motor means driving the pin, and electrical control means for effecting operation of the first motor means, for thereafter effecting operation of the second and third motor means, and for effecting operation of 9 10 the fourth motor means during the angular movement engageable by said part for pivoting the part on the rotor f e rotor for clinching the inturned end of the strap.

18. The machine for manufacturing elongated strap References Cited by the Examiner packaging ties of claim 17 wherein the rotor has a part 5 UNITED STATES PATENTS pivotally mounted thereon providing the shoulder and 2,489,377 11/1949 Hendrixson 29-339 wherein the forming and shearing means includes a stop RICHARD H. EANES, 111., Primary Examiner. 

1. A MACHINE FOR MANUFACTURING ELONGATED STRAP PACKAGING TIES HAVING A SEAL THEREON AND A FLANGED END RETAINING THE SEAL, COMPRISING IN OPERATIVE ALIGNMENT, A FEED MECHANISM OPERABLE FOR FORWARDLY FEEDING THE STRAP, MEANS OPERABLE FOR SHEARING THE STRAP AND FOR 